Summary and Conclusions

  • Eulalia SzmidtEmail author
Part of the Studies in Fuzziness and Soft Computing book series (STUDFUZZ, volume 307)


The intuitionistic fuzzy sets are a generalization of fuzzy sets with an additional degree of freedom, as compared to fuzzy sets, which are fully described by the degree of membership. In the definition of an intuitionistic fuzzy set a degree of non-membership is added, and the value of membership plus the value of nonmembership for an element does not necessarily make one. Some psychological experiments demonstrate that in many judgments of human beings such a phenomenon happens. The additional degree of freedom means inherent possibility to model and process more adequately and more human consistently the imprecise information, and makes the intuitionistic fuzzy sets a useful tool in decision making.

Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  1. 1.Systems Research InstitutePolish Academy of Sciences WarsawPoland

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